Discussion on the comments on DFT calculation, biological activity, anion sensing studies and crystal structure of (E)-4-chloro-2-((pyridin-2-ylimino)-methyl)phenol by Nuray Yildirim, Neslihan Demir, Gokhan Alpaslan, Bahadir Boyacioglu, Mustafa Yildiz and Huseyin Unver, published in the Journal of the Serbian Chemical Society, Volume 83, Issue 6, 2018, pp. 707-721